Brunson etal
thermoplastic polymeric tear



*7 tea 0050 DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Apr. 11, 1968, 849 0.G. 1221. Identiflcation is by serial number of the application and the heading indicates the number of pages of specification, including claims, and of sheets of drawing contained in the application as originally filed. The file of this application is available to the public for inspection; reproduction may be purchased for I30 cents per sheet.

Applications published under the Defensive Publication Program have not been examined as to the merits oi alleged invention. The Patent Ofllce makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED MARCH 18, 1969 ABLY 0N UNDERSIDE OF WRAPPING MAT ERXAL.

P ERFORATED STARTING WRAPPING FOR PACK- TAB the surface of the packaging material. Polyolefin copolymers are especially useful which have a viscosity of 20,000 to 50,000 cps. at 190 C., e.g., copolymer of 30-60% butene-l and 40-70% propylene.

Marh 18, 1969 P ERFO'RATE D STARTENG TAB M. C. BRUNSQN ETAL THERMOPLASTIC POLYMERIC TEAR STRIPS.v

FOR PACKAGING MATERIALS Filed March 29, 1967 HOT MELT ADHESIVE TEAR STRIP, PREFER' ABLY ON UNDERSIDE OF WRAPPING MAT" ERIAL.

WRAPPING FOR PACK AGE OF CEREAL, CIG' ARETTES, OR THE LIKE.

Marion 0. Brunson William D. McGilien INVENTORS RNEYS 

